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Finding the Fourth Proportional to 144,480.50, 199,391.93 and 80,822.58

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Solution

The fourth proportional to 144,480.50, 199,391.93 and 80,822.58 is: 111,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,480.50 : 199,391.93 = 80,822.58 : x
  2. Step 2: Convert to fraction form
    144,480.50/199,391.93 = 80,822.58/x
  3. Step 3: Cross multiply
    144,480.50x = 199,391.93 × 80,822.58
  4. Step 4: Simplify right side
    144,480.50x = 16,115,370,213.78
  5. Step 5: Solve for x
    x = 16,115,370,213.78/144,480.50
  6. Step 6: Final answer
    x = 111,540.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.